From: matz@... (Yukihiro Matsumoto)
Date: 2003-02-19T17:08:19+09:00
Subject: Re: How to test for existence of instance variable?

Hi,

In message "Re: How to test for existence of instance variable?"
    on 03/02/19, Paul Brannan <pbrannan@atdesk.com> writes:

|Creating an attribute reader and not initializing the attribute (either
|with @foo= or with self.foo=) is a bug.  The user should never see this
|warning except for buggy code.

I thought it is needed just because

  @foo ||= []

trick cannot be done for attributes without causing warning.

							matz.